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CVE-2012-4184
The Chrome Object Wrapper (COW) implementation in Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbird before 16.0,…
Medium4.3EPSS 1.8%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
The Chrome Object Wrapper (COW) implementation in Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbird before 16.0, Thunderbird ESR 10.x before 10.0.8, and SeaMonkey before 2.13 does not prevent access to properties of a prototype for a standard class, which allows remote attackers to execute arbitrary JavaScript code with chrome privileges via a crafted web site.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
- EPSS (exploitation in 30 days)
- 1.8% · top 21% of all CVEs (3 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Weakness
Affected products
n/a
- affected n/a
References (14)
- 50904 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 50984 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://www.mozilla.org/security/announce/2012/mfsa2012-83.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- 86113 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- 50892 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- RHSA-2012:1351 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 55318 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- https://bugzilla.mozilla.org/show_bug.cgi?id=780370 (opens in a new tab)x_refsource_CONFIRMx_transferred
- SUSE-SU-2012:1351 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- MDVSA-2012:163 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- oval:org.mitre.oval:def:16946 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 56120 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- firefox-cow-xss(79154) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- USN-1611-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2012-4184)Record last updated .